package com.itheima.reggie.web;

import ch.qos.logback.core.status.Status;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.DishFlavor;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

//菜品管理
@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;

    //新增菜品
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto){
        log.info(dishDto.toString());
        dishService.saveWithFlavor(dishDto);
        return R.success("菜品添加成功");
    }

    //分页、条件查询
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("001");
        //构造分页构造器对象
        Page<Dish> pageInfo = new Page<>(page,pageSize);
        Page<DishDto> dishDtoPage = new Page<>();
        //构造条件构造器对象
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.like(name!=null, Dish::getName,name);
        //按照更新时间降序排序
        queryWrapper.orderByDesc(Dish::getUpdateTime);
        log.info("002");
        //执行分页查询
        dishService.page(pageInfo,queryWrapper);
        log.info("003");

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");
        //BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");
        List<Dish> records = pageInfo.getRecords();
        log.info("004");
       List<DishDto> list = records.stream().map((item) -> {
           DishDto dishDto = new DishDto();
           BeanUtils.copyProperties(item,dishDto);
           Long categoryId = item.getCategoryId();
           Category category = categoryService.getById(categoryId);
           if (category!=null){
               String categoryName = category.getName();
               dishDto.setCategoryName(categoryName);
           }
           return dishDto;

       }).collect(Collectors.toList());
        dishDtoPage.setRecords(list);
        log.info("005");
        return R.success(dishDtoPage);
    }


    //根据id查询菜品信息
    //可用于更新操作时，点击更新按钮，查询菜品信息并回显展示
    @GetMapping({"/{id}"})
    public R<DishDto> get(@PathVariable Long id){
        DishDto dishDto = dishService.getByIdwithFlavor(id);
        return R.success(dishDto);
    }

    //更新菜品表
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto){
        dishService.updateWithFlavor(dishDto);
        return R.success("修改菜品成功");
    }

    //删除菜品
    @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids){
        //TODO完成业务逻辑
        //dishService.removeByIds(ids);
        return R.success("删除成功");
    }

    //起售、停售
/*    @PostMapping("/status/{ids}")
    public R<String> close(@RequestParam List<Long> ids, Integer status){

       // LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        for (Long id : ids) {
            Dish dish = new Dish();
            dish.setId(id);
            dish.setStatus(status);
            dishService.updateById(dish);
        }
     return R.success("信息修改成功");
    }*/

    //在查询时，需要根据菜品分类categoryId进行查询，
    // 并且还要限定菜品的状态为起售状态(status为1)，
    // 然后对查询的结果进行排序。

/*    @GetMapping("/list")
    public R<List<Dish>> list(Dish dish){
        //构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
        //添加查询状态，状态为1的表示起售状态，能够被查询到
        queryWrapper.eq(Dish::getStatus,1);
        //添加排序条件，先按照排序规则sort排序，再按照修改时间降序排序
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        //调用查询方法执行查询，返回结果
        List<Dish> list = dishService.list(queryWrapper);
        return R.success(list);
    }*/

    //修改查询菜品的方法，添加口味信息，dishDto

    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish){
        //构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
        //添加条件，查询状态为1（起售状态）的菜品
        queryWrapper.eq(Dish::getStatus,1);
        //添加排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);

        List<DishDto> dishDtoList = list.stream().map((item)->{
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item,dishDto);

            Long categoryId = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);
            if (category!=null){
                String name = category.getName();
                dishDto.setCategoryName(name);
            }
            //当前菜品的id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper = new LambdaQueryWrapper<>();

            lambdaQueryWrapper.eq(DishFlavor::getDishId,dishId);
            //SQL:select * from dish_flavor where dish_id = ?
            List<DishFlavor> dishFlavorList = dishFlavorService.list(lambdaQueryWrapper);
            dishDto.setFlavors(dishFlavorList);
            return dishDto;

        }).collect(Collectors.toList());
        return R.success(dishDtoList);
    }

}
